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DifferentialChangesetViewController.php
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Wed, Apr 23, 16:48

DifferentialChangesetViewController.php
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<?php
final class DifferentialChangesetViewController extends DifferentialController {
public function shouldAllowPublic() {
return true;
}
public function processRequest() {
$request = $this->getRequest();
$author_phid = $request->getUser()->getPHID();
$rendering_reference = $request->getStr('ref');
$parts = explode('/', $rendering_reference);
if (count($parts) == 2) {
list($id, $vs) = $parts;
} else {
$id = $parts[0];
$vs = 0;
}
$id = (int)$id;
$vs = (int)$vs;
$load_ids = array($id);
if ($vs && ($vs != -1)) {
$load_ids[] = $vs;
}
$changesets = id(new DifferentialChangesetQuery())
->setViewer($request->getUser())
->withIDs($load_ids)
->needHunks(true)
->execute();
$changesets = mpull($changesets, null, 'getID');
$changeset = idx($changesets, $id);
if (!$changeset) {
return new Aphront404Response();
}
$vs_changeset = null;
if ($vs && ($vs != -1)) {
$vs_changeset = idx($changesets, $vs);
if (!$vs_changeset) {
return new Aphront404Response();
}
}
$view = $request->getStr('view');
if ($view) {
$phid = idx($changeset->getMetadata(), "$view:binary-phid");
if ($phid) {
return id(new AphrontRedirectResponse())->setURI("/file/info/$phid/");
}
switch ($view) {
case 'new':
return $this->buildRawFileResponse($changeset, $is_new = true);
case 'old':
if ($vs_changeset) {
return $this->buildRawFileResponse($vs_changeset, $is_new = true);
}
return $this->buildRawFileResponse($changeset, $is_new = false);
default:
return new Aphront400Response();
}
}
if (!$vs) {
$right = $changeset;
$left = null;
$right_source = $right->getID();
$right_new = true;
$left_source = $right->getID();
$left_new = false;
$render_cache_key = $right->getID();
} else if ($vs == -1) {
$right = null;
$left = $changeset;
$right_source = $left->getID();
$right_new = false;
$left_source = $left->getID();
$left_new = true;
$render_cache_key = null;
} else {
$right = $changeset;
$left = $vs_changeset;
$right_source = $right->getID();
$right_new = true;
$left_source = $left->getID();
$left_new = true;
$render_cache_key = null;
}
if ($left) {
$left_data = $left->makeNewFile();
if ($right) {
$right_data = $right->makeNewFile();
} else {
$right_data = $left->makeOldFile();
}
$engine = new PhabricatorDifferenceEngine();
$synthetic = $engine->generateChangesetFromFileContent(
$left_data,
$right_data);
$choice = clone nonempty($left, $right);
$choice->attachHunks($synthetic->getHunks());
$changeset = $choice;
}
$coverage = null;
if ($right && $right->getDiffID()) {
$unit = id(new DifferentialDiffProperty())->loadOneWhere(
'diffID = %d AND name = %s',
$right->getDiffID(),
'arc:unit');
if ($unit) {
$coverage = array();
foreach ($unit->getData() as $result) {
$result_coverage = idx($result, 'coverage');
if (!$result_coverage) {
continue;
}
$file_coverage = idx($result_coverage, $right->getFileName());
if (!$file_coverage) {
continue;
}
$coverage[] = $file_coverage;
}
$coverage = ArcanistUnitTestResult::mergeCoverage($coverage);
}
}
$spec = $request->getStr('range');
list($range_s, $range_e, $mask) =
DifferentialChangesetParser::parseRangeSpecification($spec);
$parser = new DifferentialChangesetParser();
$parser->setCoverage($coverage);
$parser->setChangeset($changeset);
$parser->setRenderingReference($rendering_reference);
$parser->setRenderCacheKey($render_cache_key);
$parser->setRightSideCommentMapping($right_source, $right_new);
$parser->setLeftSideCommentMapping($left_source, $left_new);
$parser->setWhitespaceMode($request->getStr('whitespace'));
if ($request->getStr('renderer') == '1up') {
$parser->setRenderer(new DifferentialChangesetOneUpRenderer());
}
if ($left && $right) {
$parser->setOriginals($left, $right);
}
// Load both left-side and right-side inline comments.
$inlines = $this->loadInlineComments(
array($left_source, $right_source),
$author_phid);
if ($left_new) {
$inlines = array_merge(
$inlines,
$this->buildLintInlineComments($left));
}
if ($right_new) {
$inlines = array_merge(
$inlines,
$this->buildLintInlineComments($right));
}
$phids = array();
foreach ($inlines as $inline) {
$parser->parseInlineComment($inline);
if ($inline->getAuthorPHID()) {
$phids[$inline->getAuthorPHID()] = true;
}
}
$phids = array_keys($phids);
$handles = $this->loadViewerHandles($phids);
$parser->setHandles($handles);
$engine = new PhabricatorMarkupEngine();
$engine->setViewer($request->getUser());
foreach ($inlines as $inline) {
$engine->addObject(
$inline,
PhabricatorInlineCommentInterface::MARKUP_FIELD_BODY);
}
$engine->process();
$parser->setMarkupEngine($engine);
if ($request->isAjax()) {
// TODO: This is sort of lazy, the effect is just to not render "Edit"
// and "Reply" links on the "standalone view".
$parser->setUser($request->getUser());
}
$output = $parser->render($range_s, $range_e, $mask);
$mcov = $parser->renderModifiedCoverage();
if ($request->isAjax()) {
$coverage = array(
'differential-mcoverage-'.md5($changeset->getFilename()) => $mcov,
);
return id(new PhabricatorChangesetResponse())
->setRenderedChangeset($output)
->setCoverage($coverage);
}
Javelin::initBehavior('differential-show-more', array(
'uri' => '/differential/changeset/',
'whitespace' => $request->getStr('whitespace'),
));
Javelin::initBehavior('differential-comment-jump', array());
// TODO: [HTML] Clean up DifferentialChangesetParser output, but it's
// undergoing like six kinds of refactoring anyway.
$output = phutil_safe_html($output);
$detail = new DifferentialChangesetDetailView();
$detail->setChangeset($changeset);
$detail->appendChild($output);
$detail->setVsChangesetID($left_source);
$panel = new DifferentialPrimaryPaneView();
$panel->appendChild(
phutil_tag(
'div',
array(
'class' => 'differential-review-stage',
'id' => 'differential-review-stage',
),
$detail->render()));
$crumbs = $this->buildApplicationCrumbs();
$revision_id = $changeset->getDiff()->getRevisionID();
if ($revision_id) {
$crumbs->addTextCrumb('D'.$revision_id, '/D'.$revision_id);
}
$diff_id = $changeset->getDiff()->getID();
if ($diff_id) {
$crumbs->addTextCrumb(
pht('Diff %d', $diff_id),
$this->getApplicationURI('diff/'.$diff_id));
}
$crumbs->addTextCrumb($changeset->getDisplayFilename());
$box = id(new PHUIObjectBoxView())
->setHeaderText(pht('Standalone View'))
->appendChild($panel);
return $this->buildApplicationPage(
array(
$crumbs,
$box,
),
array(
'title' => pht('Changeset View'),
));
}
private function loadInlineComments(array $changeset_ids, $author_phid) {
$changeset_ids = array_unique(array_filter($changeset_ids));
if (!$changeset_ids) {
return;
}
return id(new DifferentialInlineCommentQuery())
->withViewerAndChangesetIDs($author_phid, $changeset_ids)
->execute();
}
private function buildRawFileResponse(
DifferentialChangeset $changeset,
$is_new) {
$viewer = $this->getRequest()->getUser();
if ($is_new) {
$key = 'raw:new:phid';
} else {
$key = 'raw:old:phid';
}
$metadata = $changeset->getMetadata();
$file = null;
$phid = idx($metadata, $key);
if ($phid) {
$file = id(new PhabricatorFileQuery())
->setViewer($viewer)
->withPHIDs(array($phid))
->execute();
if ($file) {
$file = head($file);
}
}
if (!$file) {
// This is just building a cache of the changeset content in the file
// tool, and is safe to run on a read pathway.
$unguard = AphrontWriteGuard::beginScopedUnguardedWrites();
if ($is_new) {
$data = $changeset->makeNewFile();
} else {
$data = $changeset->makeOldFile();
}
$file = PhabricatorFile::newFromFileData(
$data,
array(
'name' => $changeset->getFilename(),
'mime-type' => 'text/plain',
));
$metadata[$key] = $file->getPHID();
$changeset->setMetadata($metadata);
$changeset->save();
unset($unguard);
}
return id(new AphrontRedirectResponse())
->setURI($file->getBestURI());
}
private function buildLintInlineComments($changeset) {
$lint = id(new DifferentialDiffProperty())->loadOneWhere(
'diffID = %d AND name = %s',
$changeset->getDiffID(),
'arc:lint');
if (!$lint) {
return array();
}
$lint = $lint->getData();
$inlines = array();
foreach ($lint as $msg) {
if ($msg['path'] != $changeset->getFilename()) {
continue;
}
$inline = new DifferentialInlineComment();
$inline->setChangesetID($changeset->getID());
$inline->setIsNewFile(1);
$inline->setSyntheticAuthor('Lint: '.$msg['name']);
$inline->setLineNumber($msg['line']);
$inline->setLineLength(0);
$inline->setContent('%%%'.$msg['description'].'%%%');
$inlines[] = $inline;
}
return $inlines;
}
}

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